| Phenotype details |
Prenatal development: unremarkable; developmental delay, intellectual disability ; no microcephaly; no short stature; age at sitting: not achieved; age at walking: not achieved; age at talking & current speech:not achieved; dysmorphic features: none; neurologic & behavioral problems: seizures infantile spasms hypertonia; electroencephalogram: abnormal (verbal disclosure); brain magnetic resonance: ventricular dilatation predominantly involving the occipital and temporal horns of the lateral ventricles with prominence of the subarachnoid space raising the possibility of underlying atrophy and a migrational anomaly; visual abnormalities: optic atrophy; other abnormalities: failure to thrive, gastroesophageal reflux disease, g-tube, hearing loss, laryngotracheomalacia respiratory distress |